JC7-1227 GPS L2 Jammer Antenna | 1210-1240 MHz 7 dBi Omni
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JC7-1227

GPS Band High Gain Omni Antenna

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JC7-1227GPS Band High Gain Omni Antenna1210-1240MHz7dBi.Download DatasheetDownload ManualPost Enquiry

The JC7-1227 is a high-performance, Omni-Directional High Gain Jammer Collinear Antenna specifically engineered for the 1210–1240 MHz frequency range. Optimized for the GPS L2 band, this tactical aperture provides a potent electronic "denial zone" to neutralize satellite-based navigation and timing signals. Featuring a ruggedized ABS radome and a flexible suite of tactical mounting options, the JC7-1227 is a critical asset for Electronic Warfare (EW) units requiring persistent L-band protection for vehicles, man-packs, and fixed sites.

Design: Precision GPS L2 Band Dominance

The JC7-1227 is optimized for mission-critical electronic attack hubs that require focused power projection against L-band receivers.

  • Focused 36° Vertical Beam: By utilizing vertically stacked radiating elements, the antenna achieves a narrow 36-degree vertical beamwidth. This compresses RF energy toward the horizon, maximizing the effective jamming radius while preventing power wastage in the sky.
  • Superior Impedance Matching: Engineered for an exceptional VSWR of better than 1.5:1 across the entire 30 MHz bandwidth, ensuring maximum power transfer from the transmitter and preventing damage to sensitive RF hardware.
  • Low Wind-Load Profile: The cylindrical ABS enclosure is designed to withstand 200 Km/Hr wind speeds and resist ice formation, maintaining structural and electrical integrity in extreme tactical environments.

Construction: Tactical Agility & Hardening

Built for survivability in frontline combat theaters, the JC7-1227 offers an unparalleled variety of mounting configurations.

  • Ruggedized ABS Radome: The radiating core is fully enclosed in a 45 mm diameter ABS radome. This material offers high RF transparency and is mechanically robust enough to withstand UV exposure and physical impact.
  • Corrosion-Resistant Architecture: Constructed using 6063T6 ultra-corrosion resistant aluminum alloy for the radiators and support pipe, finished in Military Olive Green for a low visual signature.
  • Five Tactical Mounting Solutions:
    1. Standard NATO 4-Hole: For immediate bolt-on vehicular integration.
    2. Roof-Top Hole (16mm): For discreet, low-profile vehicle mounting.
    3. Man-Pack Direct: Optimized for dismounted troops with M-Male termination.
    4. Pole Mount: Suitable for fixed sites with 32–51 mm pipes.
    5. Shock-Absorbing NATO Mount: Equipped with a bi-conical spring base to protect the antenna during high-intensity off-road maneuvers.

EW, SIGINT & Monitoring Compatibility

  • Electronic Warfare (EW): Primary tool for wide-area GPS L2 navigation denial and signal spoofing.
  • Counter-UAS (C-UAS): Specifically designed to disrupt the GNSS navigation systems of tactical drones and loitering munitions.
  • Signals Intelligence (SIGINT): The clean noise floor and stable 7 dBi gain allow for the high-fidelity intercept of L-band satellite telemetry and microwave data links.

Key Advantages

  • Unified L-Band Solution: Precision tuned for 1227.60 MHz (GPS L2) and the adjacent spectrum.
  • 150W Power Handling: Capable of continuous-duty RF transmission for persistent signal denial.
  • Zero Field Tuning: Factory-tuned architecture requires no calibration for immediate "plug-and-play" deployment.
  • SWaP-Optimized: At only 600 mm in length and 1 Kg in weight, it provides a high-gain solution without compromising platform mobility.

 

Design Features : The JC7-1227 Jammer collinear antenna is rugged all weather model, enclosed in a ABS radome, uses all ultra corrosion resistant aluminum alloy and does not require any field tuning or adjustments. The compact size of omni-directional antenna allows easy handling, shipping and highly suitable for transmitting, receiving including GPS L2 band without having the requirement of multiple antennas. Cylindrical enclosure is used for low wind loading and for minimal effect of ice formation on the antenna operation as well as providing an aesthetically pleasing appearance.

Constructions : The jammer collinear antenna is supplied complete in assembled condition. This discone antenna has smooth VSWR and constant Gain over the 1210-1240 MHz frequency band including GPS L2 band. The JC7-1227 jammer antenna consists of ultra corrosion resistant radiating elements and enclosed in ABS housing. The ABS has excellent transparency for Radio Signal and mechanically Robust to support extra mechanical strength to the antenna.

Mounting : Following four options are available to choose from:
(1) Standard NATO 4 holes pattern for military vehicle. (2) Roof-top hole mounting on the vehicle which requires a 16mm hole through roof of the vehicle with N-Female termination. (3) Man-pack mounting; in this you can mount the antenna directly on the equipment with M-male termination. (4) Antenna can be supplied with pole mounting hardware; in this the mounting hardware is suitable for mounting on any outer diameter pipe between 32-51mm. (5)Antenna can be supplied with standard NATO 4 holes mounting with bi-conical spring fitted at the base to absorb the shock/vibration during movement of vehicle.

Electrical Specifications:
Frequency Range1210 - 1240 MHz
Gain7dBi.
Bandwidth40 MHz
Antenna TypeOmni
PolarizationVertical
Input Impedance50 Ohms
Radiation PatternOmnidirectional
VSWR - Equal To or Better Then1:1.5
RF Power Handling Capacity150 Watts
Input TerminationN-Female


 

Mechanical Specifications:
Antenna MaterialsAluminum, Brass, ABS
Mounting Hardware -MaterialsStainless Steel
Wind Rating200 Km/Hr.
Mounting TypeNATO 4 Holes or Customized
Overall Length600 mm
Support Pipe Aluminum - Outer Diameter.51 mm
Shipping Length650 mm
Radome MaterialABS
Radome Outer Diameter45 mm
Radome Length530 mm
Radiating Elements - MaterialHigh Quality Brass
Gross Weight1 Kgs.


 

Environmental Specifications:
Operating Temperature(-) 30 to +70 Degrees Celsius
Storage Temperature(-) 40 to +80 Degrees Celsius
Humidity0 to 95% RH